Interpolymer Complex Formation Between Linear and Crosslinked

Poly(acrylic acid) and Poly(vinyl ether of ethyleneglycol)

Z.S. Nurkeeva1, G.A. Mun1, V.V. Khutoryanskiy1, V.A. Kan2, E.M. Shaikhutdinov2

1 Department of Macromolecular Chemistry, Al-Farabi Kazakh State National University, 95 Karasai

Batyr Str., 480012 Almaty, Kazakhstan

2 Kazakh National Technical University, 23 Satpayev str., 480013 Almaty, Kazakhstan

Abstract

The formation of H-bonded interpolymer complexes between linear and cross-linked poly(acrylic acid) and poly(vinyl ether of ethyleneglycol) is considered. The effects of pH and concentrations of polymerssolution as well as the nature of the solvent on the complexation processes are discussed. It was found that the complexes are formed in aqueous solutions only below some critical pH value, which depends on the concentration of polymers and ionic strength of the solution. The interaction between gel of poly(acrylic acid) swollen in alcohol with solution of linear poly(vinyl ether of ethyleneglycol) is accompanied by formation of turbid layer of polycomplex and contraction of gel.